70409611961 has 16 divisors (see below), whose sum is σ = 76277947200. Its totient is φ = 64606196160.

The previous prime is 70409611859. The next prime is 70409611963. The reversal of 70409611961 is 16911690407.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70409611961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70409611963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6966890 + ... + 6976988.

It is an arithmetic number, because the mean of its divisors is an integer number (4767371700).

Almost surely, 2^70409611961 is an apocalyptic number.

It is an amenable number.

70409611961 is a deficient number, since it is larger than the sum of its proper divisors (5868335239).

70409611961 is a wasteful number, since it uses less digits than its factorization.

70409611961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13256.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 70409611961 in words is "seventy billion, four hundred nine million, six hundred eleven thousand, nine hundred sixty-one".